Of Swift's song, he tells Rolling Stone: "I never got an e-mail. I never got a phone call. I was really caught off-guard, and it really humiliated me at a time when I'd already been dressed down. I mean, how would you feel if, at the lowest you've ever been, someone kicked you even lower?"

Mayer also apparently takes issue with Swift as a musician.

"As a songwriter … I think it's kind of cheap songwriting," he tells Rolling Stone. "I know she's the biggest thing in the world, and I'm not trying to sink anybody's ship, but I think it's abusing your talent to rub your hands together and go, 'Wait till he gets a load of this!' That's bull––––."